Compression of impulses

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Compression of pulses - the process of filtering the matched radar echo from the object of the compound probe, which maximizes the radar echo / noise ratio without losing the radiolocation information contained therein.

The use of a probe signal (most commonly an LMCz signal) allows for the required radial velocity discrimination (with a sufficiently long pulse duration) and the required distance discrimination (due to impulse independent pulse duration). The use of intra-pulse modulation makes the duration of the pulse before filtration longer than the duration of the pulse after filtration. The ratio of these two times is called the compression ratio.

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